Newbee在Android上工作。我有一个ListView。不确定，我哪里出错了。我在Logcat中看到此错误消息 05-04 21：00：47.410：E / AndroidRuntime（854）：java.lang.RuntimeException：无法启动活动ComponentInfo {com.example.addressbookapp / com.example.addressbookapp.MainActivity}：java.lang.RuntimeException：Your content必须有一个ListView，其id属性为＆＃39; android.R.id.list＆＃39;
05-04 21:00:47.410: E/AndroidRuntime(854): Caused by: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
05-04 21:00:47.410: E/AndroidRuntime(854): at android.app.ListActivity.onContentChanged(ListActivity.java:243)
05-04 21:00:47.410: E/AndroidRuntime(854): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:293)
05-04 21:00:47.410: E/AndroidRuntime(854): at android.app.Activity.setContentView(Activity.java:1929)
05-04 21:00:47.410: E/AndroidRuntime(854): at com.example.addressbookapp.MainActivity.onCreate(MainActivity.java:39)
05-04 21:00:47.410: E/AndroidRuntime(854): at android.app.Activity.performCreate(Activity.java:5231)
05-04 21:00:47.410: E/AndroidRuntime(854): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
05-04 21:00:47.410: E/AndroidRuntime(854): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
05-04 21:00:47.410: E/AndroidRuntime(854): ... 11 more
05-04 21:00:48.670: E/NetdConnector(385): NDC Command {44 interface fwmark exempt add 74.125.239.4/32} took too long (7648ms)
05-04 21:00:49.970: E/ConnectivityService(385): Exception trying to add a route: java.lang.IllegalStateException: command '44 interface fwmark exempt add 74.125.239.4/32' failed with '400 44 Failed to add exemption rule (File exists)'
05-04 21:00:50.900: E/BluetoothAdapter(822): Bluetooth binder is null
05-04 21:00:51.330: E/BluetoothAdapter(822): Bluetooth binder is null
05-04 21:00:51.370: E/JavaBinder(705): *** Uncaught remote exception! (Exceptions are not yet supported across processes.)
05-04 21:00:51.370: E/JavaBinder(705): java.lang.RuntimeException: android.os.DeadObjectException
05-04 21:00:51.370: E/JavaBinder(705): at android.os.Parcel.writeException(Parcel.java:1366)
05-04 21:00:51.370: E/JavaBinder(705): at android.os.Binder.execTransact(Binder.java:410)
05-04 21:00:51.370: E/JavaBinder(705): at dalvik.system.NativeStart.run(Native Method)
05-04 21:00:51.370: E/JavaBinder(705): Caused by: android.os.DeadObjectException
05-04 21:00:51.370: E/JavaBinder(705): at android.os.BinderProxy.transact(Native Method)
05-04 21:00:51.370: E/JavaBinder(705): at android.content.IIntentReceiver$Stub$Proxy.performReceive(IIntentReceiver.java:124)
05-04 21:00:51.370: E/JavaBinder(705): at android.app.ActivityThread$ApplicationThread.scheduleRegisteredReceiver(ActivityThread.java:816)
05-04 21:00:51.370: E/JavaBinder(705): at android.app.ApplicationThreadNative.onTransact(ApplicationThreadNative.java:394)
05-04 21:00:51.370: E/JavaBinder(705): at android.os.Binder.execTransact(Binder.java:404)
05-04 21:00:51.370: E/JavaBinder(705): ... 1 more
05-04 21:00:53.580: E/logwrapper(884): executing /system/bin/ip failed: No such file or directory
05-04 21:00:53.590: E/SecondaryTablController(48): ip route del failed: /system/bin/ip route del 10.0.2.2/32 via 0.0.0.0 dev eth0 table 60
05-04 21:00:53.630: E/logwrapper(885): executing /system/bin/ip failed: No such file or directory
05-04 21:00:53.640: E/SecondaryTablController(48): ip route del failed: /system/bin/ip route del 0.0.0.0/0 via 10.0.2.2 dev eth0 table 60
05-04 21:00:54.440: E/NetdConnector(385): NDC Command {51 bandwidth removeiquota eth0} took too long (580ms)
05-04 21:00:54.580: E/NetdConnector(385): NDC Command {52 bandwidth gettetherstats} took too long (538ms)
05-04 21:00:55.450: E/WindowManager(385): Starting window AppWindowToken{b4112da8 token=Token{b407b900 ActivityRecord{b4046fd0 u0 com.example.addressbookapp/.MainActivity t2}}} timed out
05-04 21:00:55.840: E/NetdConnector(385): NDC Command {53 bandwidth setiquota eth0 9223372036854775807} took too long (1396ms)
05-04 21:00:56.550: E/NetdConnector(385): NDC Command {54 bandwidth removeiquota eth0} took too long (665ms)
05-04 21:00:57.910: E/NetdConnector(385): NDC Command {55 bandwidth setiquota eth0 9223372036854775807} took too long (1349ms)
05-04 21:01:52.110: E/BluetoothAdapter(385): Bluetooth binder is null
05-04 21:01:52.110: E/BluetoothAdapter(385): Bluetooth binder is null
05-04 21:01:52.290: E/SoundPool(385): error loading /system/media/audio/ui/Effect_Tick.ogg
05-04 21:01:52.290: E/SoundPool(385): error loading /system/media/audio/ui/Effect_Tick.ogg
05-04 21:01:52.300: E/SoundPool(385): error loading /system/media/audio/ui/Effect_Tick.ogg
05-04 21:01:52.300: E/SoundPool(385): error loading /system/media/audio/ui/Effect_Tick.ogg
05-04 21:01:52.300: E/SoundPool(385): error loading /system/media/audio/ui/Effect_Tick.ogg
05-04 21:01:52.300: E/SoundPool(385): error loading /system/media/audio/ui/KeypressStandard.ogg
05-04 21:01:52.320: E/SoundPool(385): error loading /system/media/audio/ui/KeypressSpacebar.ogg
05-04 21:01:52.330: E/SoundPool(385): error loading /system/media/audio/ui/KeypressDelete.ogg
05-04 21:01:52.330: E/SoundPool(385): error loading /system/media/audio/ui/KeypressReturn.ogg
05-04 21:01:52.330: E/SoundPool(385): error loading /system/media/audio/ui/KeypressInvalid.ogg
05-04 21:02:18.010: E/BluetoothAdapter(822): Bluetooth binder is null
05-04 21:02:19.442: E/BluetoothAdapter(822): Bluetooth binder is null
05-04 21:02:19.482: E/StrictMode(976): A resource was acquired at attached stack trace but never released. See java.io.Closeable for information on avoiding resource leaks.
05-04 21:02:19.482: E/StrictMode(976): java.lang.Throwable: Explicit termination method 'release' not called
05-04 21:02:19.482: E/StrictMode(976): at dalvik.system.CloseGuard.open(CloseGuard.java:184)
05-04 21:02:19.482: E/StrictMode(976): at android.drm.DrmManagerClient.<init>(DrmManagerClient.java:258)
05-04 21:02:19.482: E/StrictMode(976): at com.google.android.mms.pdu.PduPersister.<init>(PduPersister.java:288)
05-04 21:02:19.482: E/StrictMode(976): at com.google.android.mms.pdu.PduPersister.getPduPersister(PduPersister.java:296)
05-04 21:02:19.482: E/StrictMode(976): at com.android.mms.transaction.TransactionService.onNewIntent(TransactionService.java:224)
05-04 21:02:19.482: E/StrictMode(976): at com.android.mms.transaction.TransactionService$ServiceHandler.handleMessage(TransactionService.java:621)
05-04 21:02:19.482: E/StrictMode(976): at android.os.Handler.dispatchMessage(Handler.java:102)
05-04 21:02:19.482: E/StrictMode(976): at android.os.Looper.loop(Looper.java:136)
05-04 21:02:19.482: E/StrictMode(976): at android.os.HandlerThread.run(HandlerThread.java:61)
这是我的代码： 1）fragment_main.xml
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.addressbookapp.MainActivity$PlaceholderFragment" >
<TableRow
android:id="@+id/tableRow1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#000">
<TextView
android:id="@+id/contactsTitleTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/padding_5dp"
android:text="@string/contacts_title"
android:textColor="#FFF"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_weight="1"/>
<Button
android:id="@+id/button1"
android:background="#C4BABA"
android:onClick="showAddContact"
android:text="@string/add_button"
android:textColor="#FFF"
android:textSize="20sp"/>
</TableRow>
<TableRow
android:id="@+id/tableRow2"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ListView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1">
</ListView>
</TableRow>
</TableLayout>
contact_entry.xml
<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/contactId"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:visibility="gone" />
<TextView
android:id="@+id/lastName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="@dimen/padding_5dp"
android:textColor="#444444"
android:textSize="20sp"
android:textStyle="bold"/>
<TextView
android:id="@+id/firstName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="@dimen/padding_5dp"
android:textColor="#444444"
android:textSize="20sp"
android:textStyle="bold"/>
</TableRow>
add_new_contact.xml
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TableRow
android:id="@+id/tableRow1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#000">
<TextView
android:id="@+id/editContactTextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="@dimen/padding_5dp"
android:text="@string/add_button"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#FFF"
/>
</TableRow>
<TableRow
android:id="@+id/tableRow2"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/fistNameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:padding="@dimen/padding_5dp"
android:text="@string/first_name" />
<EditText
android:id="@+id/firstName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="textPersonName"
android:padding="@dimen/padding_5dp" >
<requestFocus />
</EditText>
</TableRow>
<TableRow
android:id="@+id/tableRow3"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/lastNameTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:padding="@dimen/padding_5dp"
android:text="@string/last_name" />
<EditText
android:id="@+id/lastName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="textPersonName"
android:padding="@dimen/padding_5dp" >
</EditText>
</TableRow>
<TableRow
android:id="@+id/tableRow4"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/phoneNumberTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:padding="@dimen/padding_5dp"
android:text="@string/phone_number" />
<EditText
android:id="@+id/phoneNumber"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="phone"
android:padding="@dimen/padding_5dp" >
</EditText>
</TableRow>
<TableRow
android:id="@+id/tableRow5"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/emailTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:padding="@dimen/padding_5dp"
android:text="@string/email_address" />
<EditText
android:id="@+id/emailAddress"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="textEmailAddress"
android:padding="@dimen/padding_5dp" >
</EditText>
</TableRow>
<TableRow
android:id="@+id/tableRow6"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/addressTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:padding="@dimen/padding_5dp"
android:text="@string/home_address" />
<EditText
android:id="@+id/homeAddress"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="textPostalAddress"
android:padding="@dimen/padding_5dp" >
</EditText>
</TableRow>
<TableRow
android:id="@+id/tableRow7"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="@+id/addButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/save_data"
android:onClick="addNewContact"
android:layout_weight="1"
/>
</TableRow>
</TableLayout>
MainActivity.java
package com.example.addressbookapp;
import java.util.ArrayList;
import java.util.HashMap;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.os.Build;
public class MainActivity extends ListActivity {
// The Intent is used to perform an operation
Intent intent;
TextView contactId;
DBTools dbTools = new DBTools(this);
// Method invoked first, when the Activity is first called
protected void onCreate(Bundle savedInstanceState) {
//Get saved data, if any
super.onCreate(savedInstanceState);
//Set the main view
setContentView(R.layout.fragment_main);
//Get all data from database and store it in an array
ArrayList<HashMap<String, String>> contactList = dbTools.getAllContacts();
if (contactList.size() != 0) {
ListView listView = getListView();
listView.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> arg0, View view,
int arg2, long arg3) {
contactId = (TextView) view.findViewById(R.id.contactId);
String contactIdValue = contactId.getText().toString();
// Intent to get application that owns this Activity
Intent theIntent = new Intent(getApplication(), edit_contact.class);
// Put additional key value pair to use in Edit Contact
theIntent.putExtra("contactId", contactIdValue);
startActivity(theIntent);
}
});
// List Adapter is a bridge between ListView and ListView data
// SimpleAdapter connects data in an Array to XML
// SimpleAdapter parameters are:
// 1. Context to provide information needed about the application
// 2. The ArrayList of data is next
// 3. Followed by the xml resource
// 4. Then we have the names of the data in String format
// 5. And their specific resource ids
ListAdapter adapter = new SimpleAdapter(
MainActivity.this, contactList, R.layout.contact_entry,
new String[] {"contactId", "lastName", "firstName"},
new int[] {R.id.contactId, R.id.lastName, R.id.firstName});
// setListAdapter provides cursor for the list view
// The cursor provides access to the data
setListAdapter(adapter);
}
}
// Call the below function showAddContact when New Contact is called
private void showAddContact(View view) {
Intent theIntent = new Intent(getApplication(), NewContact.class);
startActivity(theIntent);
}
}
DBTools.java
package com.example.addressbookapp;
import java.util.ArrayList;
import java.util.HashMap;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.*;
public class DBTools extends SQLiteOpenHelper {
public DBTools(Context applicationContext){
super(applicationContext, "contactbook.db", null, 1);
}
@Override
public void onCreate(SQLiteDatabase database) {
String dmlSQL = "CREATE TABLE contacts(contactId INTEGER PRIMARY KEY, firstName TEXT, lastName Text," +
" phoneNumber TEXT, emailAddress TEXT, homeAddress Text)";
database.execSQL(dmlSQL);
}
@Override
public void onUpgrade(SQLiteDatabase database, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
String dmlSQL = "DROP TABLE IF EXISTS contacts";
database.execSQL(dmlSQL);
onCreate(database);
}
public void insertContact(HashMap<String, String> queryValues) {
SQLiteDatabase database = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put("firstName", queryValues.get("firstName"));
values.put("lastName", queryValues.get("lastName"));
values.put("phoneNumber", queryValues.get("phoneNumber"));
values.put("emailAddress", queryValues.get("emailAddress"));
values.put("homeAddress", queryValues.get("homeAddress"));
database.insert("contacts", null, values);
database.close();
}
public int updateContact(HashMap<String, String> queryValues) {
SQLiteDatabase database = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put("firstName", queryValues.get("firstName"));
values.put("lastName", queryValues.get("lastName"));
values.put("phoneNumber", queryValues.get("phoneNumber"));
values.put("emailAddress", queryValues.get("emailAddress"));
values.put("homeAddress", queryValues.get("homeAddress"));
return database.update("contacts", values, "contactId" + "=?", new String[] {queryValues.get("contactId") });
}
public void deleteContact(String id) {
SQLiteDatabase database = this.getWritableDatabase();
String theSQL = "DELETE FROM contacts WHERE contactId = '" + id + "'";
database.execSQL(theSQL);
//database.close();
}
public ArrayList<HashMap<String, String>> getAllContacts(){
ArrayList<HashMap<String, String>> contactArrayList = new ArrayList<HashMap<String, String>>();
String theSQL = "SELECT * FROM contacts";
SQLiteDatabase database = this.getWritableDatabase();
Cursor cursor = database.rawQuery(theSQL, null);
if (cursor.moveToFirst()){
do {
HashMap<String, String> contactMap = new HashMap<String, String>();
contactMap.put("contactId", cursor.getString(0));
contactMap.put("firstName", cursor.getString(1));
contactMap.put("lastName", cursor.getString(2));
contactMap.put("phoneNumber", cursor.getString(3));
contactMap.put("emailAddress", cursor.getString(4));
contactMap.put("homeAddress", cursor.getString(5));
contactArrayList.add(contactMap);
} while (cursor.moveToNext());
}
return contactArrayList;
}
public HashMap<String, String> getContactInfo(String id){
HashMap<String, String> contactMap = new HashMap<String, String>();
SQLiteDatabase database = this.getReadableDatabase();
String theSQL = "SELECT * FROM contacts where contactId = '" + id + "'";
Cursor cursor = database.rawQuery(theSQL, null);
if (cursor.moveToFirst()){
do {
contactMap.put("contactId", cursor.getString(0));
contactMap.put("firstName", cursor.getString(1));
contactMap.put("lastName", cursor.getString(2));
contactMap.put("phoneNumber", cursor.getString(3));
contactMap.put("emailAddress", cursor.getString(4));
contactMap.put("homeAddress", cursor.getString(5));
} while (cursor.moveToNext());
}
return contactMap;
}
}